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| WILLIAM THOMAS CAIN/GETTY IMAGES |
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EXERCISE
What's a couch potato to think? First, researchers told us that even a 30-minute walk in the park a few times a week was enough to get the bulk of the cardiovascular benefit of exercise. Then other studies argued that intense activity was much better. Now the government has weighed in with new guidelines that call for an hour of exercise daily—double the previous recommendation. It's enough to make you throw up your hands and look for the TV remote. Don't. The message may be mixed, but it's really very simple: doing anything is always better than doing nothing. And doing more is even better. It's a lesson Americans seem to have missed; 25% get no regular exercise at all.
Related Sources:
Institute of Medicine report (Sept. 5, 2002)
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NATION
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Does the economy win or lose in all this
arm wrestling?
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BUSINESS
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